I think, therefore I am.

Life is full of opportunities. With every opportunity that is missed, another one is born.

Success is not final and failure is not fatal. It is the courage to continue that counts.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. The most powerful warriors are patience and time.

It always seems impossible until it's done.

There is no talent here. There is hard work and obsession. You could be anyone if you put in the time.

You can be shown the path, but only you can make the first step.

You're not in competition with anyone but yourself. Outdo your past, not other people.

Pure mathematics is in its way, the poetry of logical ideas.

No one starts out on top. You have to work your way up.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.

Success is a journey, not a destination.

Work ethic is important, because, unlike intelligence, athleticism, or charisma, or any natural attribute, it’s a choice.

You can have results or excuses, not both

A book a day keeps the stupidity away.